40320310430323 has 16 divisors (see below), whose sum is σ = 50270413029120. Its totient is φ = 31417839280800.

The previous prime is 40320310430317. The next prime is 40320310430447. The reversal of 40320310430323 is 32303401302304.

It is a happy number.

It is not a de Polignac number, because 40320310430323 - 2²¹ = 40320308333171 is a prime.

It is a super-2 number, since 2×40320310430323² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40320310430291 and 40320310430300.

It is not an unprimeable number, because it can be changed into a prime (40320310410323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 680688 + ... + 9005773.

It is an arithmetic number, because the mean of its divisors is an integer number (3141900814320).

Almost surely, 2^{40320310430323} is an apocalyptic number.

40320310430323 is a deficient number, since it is larger than the sum of its proper divisors (9950102598797).

40320310430323 is a wasteful number, since it uses less digits than its factorization.

40320310430323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9740538.

The product of its (nonzero) digits is 15552, while the sum is 28.

Adding to 40320310430323 its reverse (32303401302304), we get a palindrome (72623711732627).

The spelling of 40320310430323 in words is "forty trillion, three hundred twenty billion, three hundred ten million, four hundred thirty thousand, three hundred twenty-three".